Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEETPhysicsCenter of Mass, Momentum and Collision

A particle of mass 250 ~g covers a distance of 120 ~m in 4 ~s while moving at a constant speed. The linear momentum of the particle is:

Options

  1. A75 ~kg ~m / s
  2. B7.5 ~kg ~m / s
  3. C30 ~kg ~m / s
  4. D7500 ~kg ~m / s

Correct answer

B. 7.5 ~kg ~m / s

Step-by-step solution

Given, m = 250 ~g = 0.25 ~kg d = 120 ~m t = 4 ~s The velocity of the particle is: v = d t = 120 4 = 30 ~m/s The linear momentum p is given by: p = m v p = 0.25 30 = 7.5 ~kg ~m / s Answer: 7.5 ~kg ~m / s

Practice Center of Mass, Momentum and Collision on Quantrex Academy →

More from Center of Mass, Momentum and Collision

A frictionless circular wire of unit radius is fixed on the horizontal plane. Two point particles of unit mass start moving simultaneously from point A ( = 2 ) with identical unifo 2026Bob B of mass m at rest is hanging vertically from the ceiling via a massless string of length 10 m, as shown in the figure. Point mass A of mass m travelling horizontally with spe 2026A ball of mass 0.5 kg is dropped from a height of 40 m . The ball hits the ground and rises to a height of 10 m . The impulse imparted to the ball during its collision with the gro 2025Two bodies A and B of same mass undergo completely inelastic one dimensional collision. The body A moves with velocity v₁ while body B is at rest before collision. The velocity of 2024Two particles A and B initially at rest, move towards each other under mutual force of attraction. At an instance when the speed of A is v and speed of B is 3 v , the speed of cent 2023A 1 ~kg object strikes a wall with velocity 1 ~ms ⁻¹ at an angle of 60^ with the wall and reflects at the same angle. If it remains in contact with wall for 0.1 ~s , then the force 2023A bullet of mass m hits a block of mass M elastically. The transfer of energy is the maximum, when 2023A shell of mass m is at rest initially. It explodes into three fragments having mass in the ratio 2 : 2 : 1 . If the fragments having equal mass fly off along mutually perpendicula 2022 Full Center of Mass, Momentum and Collision list All NEET PYQs